The integration model is a typical distributed and multi-layer application intelligent system.

该模型是一个典型分布式、多层应用的智能系统。

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The consumer layer application holds the session state required to maintain dialogues with the user.

使用者层应用程序维护与用户对话所需的会话。

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CORBA is excellent in isomerous environments and becomes an important technique for enterprise multi-layer application system.

CORBA在异构环境下极具优势，已成为开发企业级多层应用系统的主要技术之一。

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In hybrid form, a private cloud can include data stored on premise or off, with a private Platform-as-a-Service middleware layer managing application data and enforcing data security.

FORBES: The Data Protection And Security Case For Private Clouds

The application layer might be comparable in both cases, but the OSes are not.

CNN: Sendmail brings open source technology from Unix to NT

The real carrot is the managed services and software on top of a Cloud platform and application layer.

FORBES: Rackspace: Bull and Bear Cases